Maryland Historical Society

From Ancestry.com Wiki

The society provides a free list of genealogists or, for a fee, will have a professional genealogist check their indexed holdings. The society publishes the Maryland Historical MagazineMaryland Periodicals, Newspapers, and Manuscript Collections). In 1883, it also began The Archives of Maryland, now published by the Maryland State Archives, which sells back issues. See also the published guide to the society’s collection under Background Sources for Maryland.